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	hartrees
Energy at 0K	-76.972705
Energy at 298.15K	-76.972774
HF Energy	-76.741629
Nuclear repulsion energy	23.271273

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3100	3100	3.62
2	A₁	1574	1574	4.80
3	A₁	1407	1407	2.71
4	B₁	783	783	14.56
5	B₂	3191	3191	5.03
6	B₂	1003	1003	1.47

Atom	y (Å)	z (Å)
C1	0.000	-0.493
C2	0.000	0.845
H3	0.945	-1.059
H4	-0.945	-1.059

	C1	C2	H3	H4
C1		1.3381	1.1012	1.1012
C2	1.3381		2.1256	2.1256
H3	1.1012	2.1256		1.8891
H4	1.1012	2.1256	1.8891

All results from a given calculation for CCH₂ (vinylidene)

using model chemistry: CCSD=FULL/cc-pVDZ

States and conformations

State 1 (¹A₁)

State 2 (³B₂)

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for CCH2 (vinylidene)

using model chemistry: CCSD=FULL/cc-pVDZ

States and conformations

State 1 (1A1)

State 2 (3B2)

All results from a given calculation for CCH₂ (vinylidene)

State 1 (¹A₁)

State 2 (³B₂)